I received this FlexBreeze Fan from Influenster for free in exchange of my honest opinion. I can say this is a great item! The shark line products are amazing and this did not disappoint. I am amazed that it can work cordless as long as it is fully charged. It functions for 20 hours being charged 100%. The booster air was a plus. It is refreshing and my household is not ac level but it is fresh for sure being in a Texas home. Without the booster air option it is very quiet but I don't mind the regular fan sound for having it boosted. I definitely recommend! The sleek look is very aesthetic but especially is very efficient. Go buy one!!!!